{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["feature of", "hyponym of", "used for"], "input": "The approach of KPSG provides an explicit development model for constructing a computational phonological system : speech recognition and synthesis system ."}
{"feature of": [], "hyponym of": [], "used for": [{"subject": "approach", "object": "KPSG"}, {"subject": "KPSG", "object": "phonological system"}]}